drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c - linux - Git at Google

 /*
  * Copyright 2009 Jerome Glisse.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Jerome Glisse
  */
 #include <drm/drmP.h>
 #include <drm/amdgpu_drm.h>
 #include "amdgpu.h"

 #define AMDGPU_BENCHMARK_ITERATIONS 1024
 #define AMDGPU_BENCHMARK_COMMON_MODES_N 17

 static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
 				    uint64_t saddr, uint64_t daddr, int n)
 {
 	unsigned long start_jiffies;
 	unsigned long end_jiffies;
 	struct dma_fence *fence = NULL;
 	int i, r;

 	start_jiffies = jiffies;
 	for (i = 0; i < n; i++) {
 		struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
 		r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence,
 				       false, false);
 		if (r)
 			goto exit_do_move;
 		r = dma_fence_wait(fence, false);
 		if (r)
 			goto exit_do_move;
 		dma_fence_put(fence);
 	}
 	end_jiffies = jiffies;
 	r = jiffies_to_msecs(end_jiffies - start_jiffies);

 exit_do_move:
 	if (fence)
 		dma_fence_put(fence);
 	return r;
 }


 static void amdgpu_benchmark_log_results(int n, unsigned size,
 					 unsigned int time,
 					 unsigned sdomain, unsigned ddomain,
 					 char *kind)
 {
 	unsigned int throughput = (n * (size >> 10)) / time;
 	DRM_INFO("amdgpu: %s %u bo moves of %u kB from"
 		 " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
 		 kind, n, size >> 10, sdomain, ddomain, time,
 		 throughput * 8, throughput);
 }

 static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
 				  unsigned sdomain, unsigned ddomain)
 {
 	struct amdgpu_bo *dobj = NULL;
 	struct amdgpu_bo *sobj = NULL;
 	uint64_t saddr, daddr;
 	int r, n;
 	int time;

 	n = AMDGPU_BENCHMARK_ITERATIONS;
 	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL,
 			     NULL, 0, &sobj);
 	if (r) {
 		goto out_cleanup;
 	}
 	r = amdgpu_bo_reserve(sobj, false);
 	if (unlikely(r != 0))
 		goto out_cleanup;
 	r = amdgpu_bo_pin(sobj, sdomain, &saddr);
 	amdgpu_bo_unreserve(sobj);
 	if (r) {
 		goto out_cleanup;
 	}
 	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL,
 			     NULL, 0, &dobj);
 	if (r) {
 		goto out_cleanup;
 	}
 	r = amdgpu_bo_reserve(dobj, false);
 	if (unlikely(r != 0))
 		goto out_cleanup;
 	r = amdgpu_bo_pin(dobj, ddomain, &daddr);
 	amdgpu_bo_unreserve(dobj);
 	if (r) {
 		goto out_cleanup;
 	}

 	if (adev->mman.buffer_funcs) {
 		time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n);
 		if (time < 0)
 			goto out_cleanup;
 		if (time > 0)
 			amdgpu_benchmark_log_results(n, size, time,
 						     sdomain, ddomain, "dma");
 	}

 out_cleanup:
 	/* Check error value now. The value can be overwritten when clean up.*/
 	if (r) {
 		DRM_ERROR("Error while benchmarking BO move.\n");
 	}

 	if (sobj) {
 		r = amdgpu_bo_reserve(sobj, true);
 		if (likely(r == 0)) {
 			amdgpu_bo_unpin(sobj);
 			amdgpu_bo_unreserve(sobj);
 		}
 		amdgpu_bo_unref(&sobj);
 	}
 	if (dobj) {
 		r = amdgpu_bo_reserve(dobj, true);
 		if (likely(r == 0)) {
 			amdgpu_bo_unpin(dobj);
 			amdgpu_bo_unreserve(dobj);
 		}
 		amdgpu_bo_unref(&dobj);
 	}
 }

 void amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
 {
 	int i;
 	static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {
 		640 * 480 * 4,
 		720 * 480 * 4,
 		800 * 600 * 4,
 		848 * 480 * 4,
 		1024 * 768 * 4,
 		1152 * 768 * 4,
 		1280 * 720 * 4,
 		1280 * 800 * 4,
 		1280 * 854 * 4,
 		1280 * 960 * 4,
 		1280 * 1024 * 4,
 		1440 * 900 * 4,
 		1400 * 1050 * 4,
 		1680 * 1050 * 4,
 		1600 * 1200 * 4,
 		1920 * 1080 * 4,
 		1920 * 1200 * 4
 	};

 	switch (test_number) {
 	case 1:
 		/* simple test, VRAM to GTT and GTT to VRAM */
 		amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
 				      AMDGPU_GEM_DOMAIN_VRAM);
 		amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
 				      AMDGPU_GEM_DOMAIN_GTT);
 		break;
 	case 2:
 		/* simple test, VRAM to VRAM */
 		amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
 				      AMDGPU_GEM_DOMAIN_VRAM);
 		break;
 	case 3:
 		/* GTT to VRAM, buffer size sweep, powers of 2 */
 		for (i = 1; i <= 16384; i <<= 1)
 			amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
 					      AMDGPU_GEM_DOMAIN_GTT,
 					      AMDGPU_GEM_DOMAIN_VRAM);
 		break;
 	case 4:
 		/* VRAM to GTT, buffer size sweep, powers of 2 */
 		for (i = 1; i <= 16384; i <<= 1)
 			amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
 					      AMDGPU_GEM_DOMAIN_VRAM,
 					      AMDGPU_GEM_DOMAIN_GTT);
 		break;
 	case 5:
 		/* VRAM to VRAM, buffer size sweep, powers of 2 */
 		for (i = 1; i <= 16384; i <<= 1)
 			amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
 					      AMDGPU_GEM_DOMAIN_VRAM,
 					      AMDGPU_GEM_DOMAIN_VRAM);
 		break;
 	case 6:
 		/* GTT to VRAM, buffer size sweep, common modes */
 		for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
 			amdgpu_benchmark_move(adev, common_modes[i],
 					      AMDGPU_GEM_DOMAIN_GTT,
 					      AMDGPU_GEM_DOMAIN_VRAM);
 		break;
 	case 7:
 		/* VRAM to GTT, buffer size sweep, common modes */
 		for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
 			amdgpu_benchmark_move(adev, common_modes[i],
 					      AMDGPU_GEM_DOMAIN_VRAM,
 					      AMDGPU_GEM_DOMAIN_GTT);
 		break;
 	case 8:
 		/* VRAM to VRAM, buffer size sweep, common modes */
 		for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
 			amdgpu_benchmark_move(adev, common_modes[i],
 					      AMDGPU_GEM_DOMAIN_VRAM,
 					      AMDGPU_GEM_DOMAIN_VRAM);
 		break;

 	default:
 		DRM_ERROR("Unknown benchmark\n");
 	}
 }
	/*
	* Copyright 2009 Jerome Glisse.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors: Jerome Glisse
	*/
	#include <drm/drmP.h>
	#include <drm/amdgpu_drm.h>
	#include "amdgpu.h"

	#define AMDGPU_BENCHMARK_ITERATIONS 1024
	#define AMDGPU_BENCHMARK_COMMON_MODES_N 17

	static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
	uint64_t saddr, uint64_t daddr, int n)
	{
	unsigned long start_jiffies;
	unsigned long end_jiffies;
	struct dma_fence *fence = NULL;
	int i, r;

	start_jiffies = jiffies;
	for (i = 0; i < n; i++) {
	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
	r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence,
	false, false);
	if (r)
	goto exit_do_move;
	r = dma_fence_wait(fence, false);
	if (r)
	goto exit_do_move;
	dma_fence_put(fence);
	}
	end_jiffies = jiffies;
	r = jiffies_to_msecs(end_jiffies - start_jiffies);

	exit_do_move:
	if (fence)
	dma_fence_put(fence);
	return r;
	}


	static void amdgpu_benchmark_log_results(int n, unsigned size,
	unsigned int time,
	unsigned sdomain, unsigned ddomain,
	char *kind)
	{
	unsigned int throughput = (n * (size >> 10)) / time;
	DRM_INFO("amdgpu: %s %u bo moves of %u kB from"
	" %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
	kind, n, size >> 10, sdomain, ddomain, time,
	throughput * 8, throughput);
	}

	static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
	unsigned sdomain, unsigned ddomain)
	{
	struct amdgpu_bo *dobj = NULL;
	struct amdgpu_bo *sobj = NULL;
	uint64_t saddr, daddr;
	int r, n;
	int time;

	n = AMDGPU_BENCHMARK_ITERATIONS;
	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL,
	NULL, 0, &sobj);
	if (r) {
	goto out_cleanup;
	}
	r = amdgpu_bo_reserve(sobj, false);
	if (unlikely(r != 0))
	goto out_cleanup;
	r = amdgpu_bo_pin(sobj, sdomain, &saddr);
	amdgpu_bo_unreserve(sobj);
	if (r) {
	goto out_cleanup;
	}
	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL,
	NULL, 0, &dobj);
	if (r) {
	goto out_cleanup;
	}
	r = amdgpu_bo_reserve(dobj, false);
	if (unlikely(r != 0))
	goto out_cleanup;
	r = amdgpu_bo_pin(dobj, ddomain, &daddr);
	amdgpu_bo_unreserve(dobj);
	if (r) {
	goto out_cleanup;
	}

	if (adev->mman.buffer_funcs) {
	time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n);
	if (time < 0)
	goto out_cleanup;
	if (time > 0)
	amdgpu_benchmark_log_results(n, size, time,
	sdomain, ddomain, "dma");
	}

	out_cleanup:
	/* Check error value now. The value can be overwritten when clean up.*/
	if (r) {
	DRM_ERROR("Error while benchmarking BO move.\n");
	}

	if (sobj) {
	r = amdgpu_bo_reserve(sobj, true);
	if (likely(r == 0)) {
	amdgpu_bo_unpin(sobj);
	amdgpu_bo_unreserve(sobj);
	}
	amdgpu_bo_unref(&sobj);
	}
	if (dobj) {
	r = amdgpu_bo_reserve(dobj, true);
	if (likely(r == 0)) {
	amdgpu_bo_unpin(dobj);
	amdgpu_bo_unreserve(dobj);
	}
	amdgpu_bo_unref(&dobj);
	}
	}

	void amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
	{
	int i;
	static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {
	640 * 480 * 4,
	720 * 480 * 4,
	800 * 600 * 4,
	848 * 480 * 4,
	1024 * 768 * 4,
	1152 * 768 * 4,
	1280 * 720 * 4,
	1280 * 800 * 4,
	1280 * 854 * 4,
	1280 * 960 * 4,
	1280 * 1024 * 4,
	1440 * 900 * 4,
	1400 * 1050 * 4,
	1680 * 1050 * 4,
	1600 * 1200 * 4,
	1920 * 1080 * 4,
	1920 * 1200 * 4
	};

	switch (test_number) {
	case 1:
	/* simple test, VRAM to GTT and GTT to VRAM */
	amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
	AMDGPU_GEM_DOMAIN_VRAM);
	amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_GTT);
	break;
	case 2:
	/* simple test, VRAM to VRAM */
	amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_VRAM);
	break;
	case 3:
	/* GTT to VRAM, buffer size sweep, powers of 2 */
	for (i = 1; i <= 16384; i <<= 1)
	amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
	AMDGPU_GEM_DOMAIN_GTT,
	AMDGPU_GEM_DOMAIN_VRAM);
	break;
	case 4:
	/* VRAM to GTT, buffer size sweep, powers of 2 */
	for (i = 1; i <= 16384; i <<= 1)
	amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
	AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_GTT);
	break;
	case 5:
	/* VRAM to VRAM, buffer size sweep, powers of 2 */
	for (i = 1; i <= 16384; i <<= 1)
	amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
	AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_VRAM);
	break;
	case 6:
	/* GTT to VRAM, buffer size sweep, common modes */
	for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
	amdgpu_benchmark_move(adev, common_modes[i],
	AMDGPU_GEM_DOMAIN_GTT,
	AMDGPU_GEM_DOMAIN_VRAM);
	break;
	case 7:
	/* VRAM to GTT, buffer size sweep, common modes */
	for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
	amdgpu_benchmark_move(adev, common_modes[i],
	AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_GTT);
	break;
	case 8:
	/* VRAM to VRAM, buffer size sweep, common modes */
	for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
	amdgpu_benchmark_move(adev, common_modes[i],
	AMDGPU_GEM_DOMAIN_VRAM,
	AMDGPU_GEM_DOMAIN_VRAM);
	break;

	default:
	DRM_ERROR("Unknown benchmark\n");
	}
	}